SECTION 15500 BASIC HVAC REQUIREMENTS

This spec was part of the Des Plaines, IL River WRF project that bid Feb 26, 2015.

SECTION 15500

BASIC HVAC REQUIREMENTS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes

1. This  section includes  general  administrative  and  procedural requirements  for HVAC installations.

1.2 REGULATORY REQUIREMENTS

A. Conform to all state and local code requirements.

B. Obtain permits and request inspections from authority having jurisdiction and pay for all fees incidental thereto.

1.3 PROJECT/SITE CONDITIONS

A. Install work in locations shown on drawings, unless prevented by project conditions.

B. Before submitting a bid, the Contractor shall visit the site and familiarize himself with all features of the building and site, which may affect the execution of his work. No extra payment will be allowed for the failure to obtain this information. If in the opinion of the Contractor there are omissions or errors in the plans or specifications, the Contractor shall clarify these points with the Engineer before submitting his bid. In lieu of written clarification by addendum, the contractor shall resolve all conflicts in favor of the greater quantity or better quality.

C. Project design is based around the first listed manufacturer in relative specification sections. Subsequent manufacturers listed are also acceptable. However, the use of these manufacturers may result in minor design changes involving equipment layout, supports, etc. Substituted manufacturers other than those listed will not be allowed. The Contractor shall be responsible for such and include any modifications required as part of his bid.

D. It must be understood that the details and drawings are diagrammatic. The Contractor shall verify all dimensions at the site with the Owner’s representative and be responsible for their accuracy. Where appropriate the location shall be established in accordance with the manufacturer’s installation drawings and details subject to the Engineer’s review.

E. Prepare drawings showing proposed rearrangement of work to meet project conditions, including changes to work specified in other sections. Obtain permission of Engineer before proceeding.

1.4 QUALITY ASSURANCE

A. Electrical Characteristics for Mechanical Equipment: Equipment of higher electrical characteristics may be furnished provided such proposed equipment is approved in writing and connecting electrical services, circuit breakers, and conduit sizes are appropriately modified. If minimum energy ratings or efficiencies are specified, equipment shall comply with requirements.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Deliver pipes and tubes with factory-applied end caps. Maintain end caps through shipping, storage, and handling to prevent pipe end damage and to prevent entrance of dirt, debris, and moisture.

B. Store plastic pipes protected from direct sunlight. Support to prevent sagging and bending.

1.6 ACCESSIBILITY

A. Install equipment and materials to provide required access for servicing and maintenance. Coordinate the final location of concealed equipment and devices requiring access with final location of required access panels and doors. Allow ample space for removal of all parts that require replacement or servicing.

B. Extend all grease fittings to an accessible location.

1.7 ROUGH-IN

A. Verify final locations for rough-ins with field measurements and with the requirements of the actual equipment to be connected.

1.8 HVAC INSTALLATIONS

A. Coordinate HVAC equipment and materials installation with other building components.

B. Verify all dimensions by field measurements.

C. Arrange for chases, slots, and openings in other building components to allow for mechanical installations.

D. Coordinate the installation of required supporting devices and sleeves to be set in poured in place concrete and other structural components, as they are constructed.

E. Sequence, coordinate, and integrate installations of mechanical materials  and equipment for efficient flow of the work. Give particular attention to large equipment requiring positioning prior to closing in the building.

F. Coordinate the cutting and patching of building components to accommodate the installation of mechanical equipment and materials.

G. Where mounting heights are not detailed or dimensioned, install mechanical services and overhead equipment to provide the maximum headroom possible.

H. Install mechanical equipment to facilitate maintenance and repair or replacement of equipment components. As much as practical, connect equipment for ease of disconnecting, with minimum of interference with other installations.

I. Coordinate the installation of mechanical materials and equipment above ceilings with suspension system, light fixtures, and other installations.

1.9 CUTTING AND PATCHING

A. This article specifies the cutting and patching of mechanical equipment, components, and materials to include removal and legal disposal of selected materials, components, and equipment.

B. Cutting and patching shall be performed per Division 1 section entitled Cutting and Patching. Where referenced section is not included as part of this specification and as a minimum, the Contractor shall perform cutting and patching as outlined in this article.

C. Do not endanger or damage installed work through procedures and processes of cutting and patching.

D. Arrange for repairs required to restore other work, because of damage caused as a result of mechanical installations.

E. Where changes or removal of existing equipment, devices, etc. takes place. Contractor shall be responsible for restoring surfaces where original equipment devices, etc. were originally located to match existing surrounding surfaces.

F. No additional compensation will be authorized for cutting and patching work that is necessitated by ill timed, defective, or non-conforming installations.

G. Perform cutting, fitting, and patching of mechanical equipment and materials required to:
1. Uncover work to provide for installation of ill timed work;
2. Remove and replace defective work;
3. Remove  and  replace  work  not  conforming  to  requirements  of  the  Contract Documents.
4. Install equipment and materials in existing structures.

H. Cut, remove, and legally dispose of selected mechanical equipment, components, and materials as indicated including, but not limited to, removal of mechanical piping, heating units, plumbing fixtures and trim, and other mechanical items made obsolete by the new work.

I. Protect the structure, furnishings, finishes, and adjacent materials not indicated or scheduled to be removed.

J. Provide and maintain temporary partitions or dust barriers adequate to prevent the spread of dust and dirt to adjacent areas.

K. Locate, identify, and protect mechanical and electrical services passing through remodeling or demolition area and serving other areas required to be maintained operational. When services must be interrupted, provide temporary services for the affected areas and notify the Owner prior to changeover.

1.10 ELECTRICAL CONNECTIONS

A. Line voltage wiring (115 volts and over) required for the connection of the heating and ventilating equipment to be done under Division 16; line voltage temperature control wiring required for the operation of the HVAC system shall be under Division 15, unless shown on the electrical drawings (Division 16). Low voltage wiring (below 115 volts) to be done by the HVAC Contractor but shall conform to Division 16 requirements.

B. The HVAC Contractor to furnish necessary controls, wiring diagrams, and instruction sheets, and coordinate his work with that of the Electrical Contractor to assure proper connection and operation of controls and equipment.

C. The HVAC Contractor to be responsible for the operation of the system, temperature, safety, and other controls on the work during installation and guarantee period including equipment furnished by Owner.

D. Magnetic starters, pushbutton stations, pilot lights, etc. not an integral part of packaged mechanical equipment, to be furnished under Division 16, unless otherwise noted in the equipment specification section or equipment schedule.

E. Magnetic starters, pushbutton stations, pilot lights, etc, shall conform to Division 16 requirements. Manufacturers of starters shall be of same manufacturer as starter gear furnished as part of Division 16.

F. Disconnect switches, fused disconnects, capped safety switches, etc. as noted shall be furnished by the HVAC contractor whether specifically noted or not.

G. Electrical work and connections to be per Division 16 requirements.

1.11 OPERATING AND MAINTENANCE INSTRUCTIONS

A. Conform to the General Conditions and Division 1.

1.12 PROJECT RECORD DOCUMENTS

A. Conform to the General Conditions and Division 1.

PART 2 - PRODUCTS (NOT USED) PART 3 - EXECUTION (NOT USED)
END OF SECTION